What's the difference between i.e. and e.g.?
early 15c., "supreme happiness," from Middle French béatitude (15c.) and directly from Latin beatitudinem (nominative beatitudo) "state of blessedness," from past participle stem of beare "make happy," related to bene-. As "a declaration of blessedness" (usually plural, beatitudes, especially in reference to the Sermon on the Mount) it is attested from 1520s.